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Sodium polymetaphosphate

CAS 68915-31-1

Also registered as 13 other CAS numbers

10361-03-2 · 50813-16-6 · 8047-81-2 · 37244-93-2 · 37271-21-9 · 53025-55-1 · 58250-16-1 · 79176-85-5 · 83221-80-1 · 83221-81-2 · 197527-53-0 · 197527-54-1 · 197527-56-3

Concern score

Not assessed — no hazard data yet.

Sodium polymetaphosphate in plain language

What it is

Also known as Sodium hexametaphosphate · Sodium polyphosphate · Sodium metaphosphate · Insoluble sodium metaphosphate · Glassy sodium polyphosphates · Graham's salt

Show all 33 names

Sodium tetrapolyphosphate · Glassy · Glassy sodium metaphosphate · Hagan phosphate · Sodium salt hexametaphosphate · Hmp · Hy-phos · Hexasodium salt metaphosphoric acid · Sodium salts polyphosphoric acids · Shmp · Sodium phosphate glass · Sodium polyphosphates · Calgon · Carephos n · Exclusive POLYPHOSPHATE(1) · Giltex · Glass h · Hexaphos sodium hexametaphosphate · Medi-calgon · Micromet · Sodium salts phosphoric acids · Sodium salts polyphosphate · Quadrafos · Sodium polyphosphoric acids · Sodium polyphosphate glass · glassy sodium polyphosphate · sodium polyphosphate.osha pel 5 mg/m3 respirable

What it does

Used in food as a texturizer, thickener, emulsifier, sequestrant.

  • Texturizer, thickener, emulsifier, sequestrant
  • Chelating agent
Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Sodium polymetaphosphate appears in these published regulatory listings.

  • Inactive ingredient in US drugs

Recorded in these product areas

  • Found in consumer products
  • Cleaning
  • Industrial
  • GLOBALJECFAEvaluated2 entries
    • JECFA evaluation record.Source →
    • JECFA evaluation record. Functional class: texturizer, thickener, emulsifier, sequestrant.Source →
  • USFDAlisted in openFDA substance2 entries
    • openFDA substance registry classifies this ingredient as polymer.Source →
    • openFDA substance registry classifies this ingredient as concept.Source →
  • USFDAinactive ingredient database2 entries — 2 administration routes
    • Route: BUCCAL; Dosage form: SOLUTION; Potency: NASource →
    • Route: ORAL; Dosage form: SUSPENSION; Potency: 1 mg/1mlSource →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 62 composition records across product categories including Construction and building materials, Home maintenance, Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Chelating agent.
    • EPA CPDat observed this chemical in 62 composition records across product categories including Construction and building materials, Home maintenance, Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Chelating agent.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

  • JECFA

    Joint FAO/WHO Expert Committee on Food Additives

    • JECFA evaluation record.

      Year not recorded · GLOBAL JECFA listing · Read the source →

    • JECFA evaluation record. Functional class: texturizer, thickener, emulsifier, sequestrant.

      Year not recorded · GLOBAL JECFA listing · Read the source →

  • EFSA

    European Food Safety Authority

    No EFSA opinion on file.

Evidence & sources

No graded research studies for Sodium polymetaphosphate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated January 7, 2008

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA Inactive Ingredient Database

    regulatory · updated 2026-01-09

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • WHO JECFA Database

    regulatory · updated 2026-10-04

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →
Reference links (2)
Openfda substance

analytyka.com.mx

Read →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Sodium polymetaphosphate in a product composition. These are source records, not Greenveil catalog products.

Source records

62

Named organisations

5

Construction and building materialsHome maintenanceSpecialty occupational productsLaboratory suppliesCleaning and safetyRaw materials

Typical roles

Texturizer, thickener, emulsifier, sequestrantChelating agent
See products using Sodium polymetaphosphate →

Catalog

Found in these products

Their ingredient lists include Sodium polymetaphosphate; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 49 →Find products without it →